Lets get all the information we need first.
A week has 7 days, you practice 30 min each day, so in a week you will practice a total time t of 30 min for 7 times, that is:
t = 7day(30 min/day)
t = 210 min
So in a week you will practice a total of 210 minutes.
Answer:
6d-30
Step-by-step explanation:
6(d-5)
6d-30 distributive property
Answer:
that's easy decide which one is more reasonable to your question
Step-by-step explanation:
The value of x in the expression, x 2 = 9 is 4.5
9 divided by 2 = 4.5
Answer:
x^2 +6x-27
Step-by-step explanation:
